Dike (geology) - Wikipedia
In geology, a dike or dyke is a sheet of rock that is formed in a fracture of a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock.
Dike Definition & Meaning - Merriam-Webster
The meaning of DIKE is an artificial watercourse : ditch.
Dike: What is a Dike, Types Of Dikes - Geology In
It is a type of tabular or sheet intrusion, that either cuts across layers in a planar wall rock structures, or into a layer or unlayered mass of rock. A dike (or dyke) is a sheet-like body of rock that forms when molten magma or fragmented rock material intrudes into a fracture in pre-existing rock, cutting across the surrounding rock layers.
Dikes: Defined and Explained - ThoughtCo
2020年1月17日 · Learn all about dikes, which are igneous or sedimentary intrusions that form in the pre-existing, vertical fractures of older rock.
Dike - Education | National Geographic Society
2024年4月29日 · Dikes cut across the other type of rock at a different angle than the rest of the structure. Dikes are usually visible because they are at a different angle, and usually have different color and texture than the rock surrounding them. Dikes are made of igneous rock or sedimentary rock.
Reading: Dikes and Sills | Geology - Lumen Learning
Dikes often form as either radial or concentric swarms around plutonic intrusives, volcanic necks or feeder vents in volcanic cones. The latter are known as ring dikes.
Dike | Volcanic, Intrusive & Magma | Britannica
dike, in geology, tabular or sheetlike igneous body that is often oriented vertically or steeply inclined to the bedding of preexisting intruded rocks; similar bodies oriented parallel to the bedding of the enclosing rocks are called sills.
9.13: Reading- Dikes and Sills - Geosciences LibreTexts
2024年6月10日 · Dikes. A dike is a sheet of rock that formed in a fracture in a pre-existing rock body. Dikes can be either magmatic or sedimentary in origin. Magmatic dikes form when magma intrudes into a crack then crystallizes as a sheet intrusion, either cutting across layers of rock or through an unlayered mass of rock.
Dike - Geology is the Way
Dike A dike (also spelled dyke) is a sheet tabular intrusion that crosscuts preexisting country rocks. In the vast majority of cases, a dike consists of igneous rocks. However, sedimentary processes may also produce sediment-filled cracks called clastic or sedimentary dikes. A dike always show disc
USGS: Volcano Hazards Program Glossary - Dike
Dikes are tabular or sheet-like bodies of magma that cut through and across the layering of adjacent rocks. They form when magma rises into an existing fracture, or creates a new crack by forcing its way through existing rock, and then solidifies.